VMs with dedicated NIC

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pvenub

Member
Mar 17, 2014
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Have two NICs and am trying to figure out how to dedicate VMs to particular NIC. I have tried created bridge to eth0 and eth1 with vmbr0 and vmbr1 but if I do that way I can't use NAT? If I don't use NAT do I need to create vmbr.x for each VM separately or is there built in dhcp when using bridged mode?

Thank you,
 
wolfgang said:
Hi,

have a look in the wiki.

https://pve.proxmox.com/wiki/Network_Model
Click to expand...

this doesn't help much
how do i bridge all 4 NICs with dedicated ip addresses
i need each vm to have a dedicated interface

this is the default config

Code: 
auto lo
iface lo inet loopback

iface eno0 inet manual

auto vmbr0
iface vmbr0 inet static
        address 192.168.*.*
        netmask 255.255.255.0
        gateway 192.168.*.1
        bridge_ports eno0
        bridge_stp off
        bridge_fd 0

iface eno1 inet manual

iface eno2 inet manual

iface eno3 inet manual


i changed it to

Code: 
auto lo
iface lo inet loopback

iface eno0 inet manual

auto vmbr0
iface vmbr0 inet static
        address 192.168.*.2
        netmask 255.255.255.0
        gateway 192.168.*.1
        bridge_ports eno0
        bridge_stp off
        bridge_fd 0

iface eno1 inet manual

auto vmbr1
iface vmbr1 inet static
        address 192.168.*.3
        netmask 255.255.255.0
        gateway 192.168.*.1
        bridge_ports eno1
        bridge_stp off
        bridge_fd 0


iface eno2 inet manual

auto vmbr2
iface vmbr2 inet static
        address 192.168.*.4
        netmask 255.255.255.0
        gateway 192.168.*.1
        bridge_ports eno2
        bridge_stp off
        bridge_fd 0

iface eno3 inet manual

auto vmbr3
iface vmbr3 inet static
        address 192.168.*.5
        netmask 255.255.255.0
        gateway 192.168.*.1
        bridge_ports eno3
        bridge_stp off
        bridge_fd 0


but didn't work and i lost access to the web interface

Code: 
ip a
showed first 2 eno states are down
 
Last edited:
Did you ever figure this out? I also want to dedicate a specific port from a Quad port NIC to one of my VM's but can't seem to get it working
 
You can create separate virtual bridge for every VM, each using one eth-port...
 
As alternative "pass-through" comes to my mind. But I'm not sure you can pass just individual port of multiport-NIC to VM. If you had multiple NICs (each with single eth-port), you could pass one NIC to every VM...

But I think that solution vith individual virtual bridge is easier. Never used it on PVE, but I have been using it extensively on ESXi (they call it "virtual switch" there) and it worked...
 
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